Effect of Temperature on the Competitiveness of Three Stored Product Insects


  • Falah A. S. Plant Protection Department, College of Agricultural Engineering Sciences / University of Baghdad, Baghdad




Trogoderma granarium, Tribolium castaneum, Oryzaephilus surinamensis, superior, competitor, density, heat, determinants, competition, tolerance, preferences, dormancy, displacement, abundance


Competitiveness is an important feature in insect biology. Three srtored product pests viz., Trogoderma granarium, Tribolium castaneum, Oryzaephilus surinamensis were evaluated for their competitiveness at 35, 25 and 40°C. The results revealed that within 6 months, T. castaneum and O. surinamensis could not displace the T. granarium, but at 35 °C, T. granarium was able to displace the O. surinamensis. It was found that T. granarium at 25 °C continued to be dominant for long periods without being affected by other species. It was in the dormant larval or egg stage despite the death of all adults, and the increased at 40°C.


Download data is not yet available.


Metrics Loading ...




How to Cite

A. S., F. (2023). Effect of Temperature on the Competitiveness of Three Stored Product Insects. Indian Journal of Entomology, 85(3), 530–532. https://doi.org/10.55446/IJE.2023.1512



Research Articles


Affognon H, Mutungi C, Sanginga P, Borgemeister C. 2015. Unpacking postharvest losses in sub-saharan Africa: A meta-analysis. World Development 66: 49-68.

Athanassiou C. 2022. Trogoderma granarium (khapra beetle). www. cabi.org/cpc/DATASHEET/55010. Accessed July 2023.

Bale J S, G J Masters, I D. Hodkinson et al. 2002. Herbivory in global climate change research: direct effects of rising temperature on insect herbivores, Global Change Biology 8(1): 1-16.

Bird G, Kaczvinsky C, Wilson A E, Hardy N B. 2019. When do herbivorous insects compete? A phylogenetic meta-analysis. Ecology Letters 22(5): 875-883.

Collins C M, Bonds J A S, Quinlan M M, Mumford J D. 2019. Effects of the removal or reduction in density of the malaria mosquito, Anopheles gambiae sl, on interacting predators and competitors in local ecosystems. Medical and Veterinary Entomology 33(1): 1-15.

Daily G. 1997. Economic pathways to ecological sustainability. Bioscience 50: 339-345.

Dasgupta P, Levin S, Lubchenco J. 2000. Economic pathways to ecological sustainability. Bioscience 50(4): 339-345.

Đukić N, Radonjić A, Popović B, Kljajić P, Pražič-Golić M, Andrić G. 2022. The impact of the protein-carbohydrate ratio in animal feed and the initial insect population density on the development of the red flour beetle, Tribolium castaneum. Journal of Stored Products Research 97: 101983.

Falah A S, Azher M A. 2020. Effect of different levels of relative humidity and impurities in three stored insects. Plant Archives 20: 257-261.

S A S. 2018. Statistical analysis system, user's guide. Statistical. Version 9.6th ed. SAS. Inst. Inc. Cary. N.C. USA.

Kavallieratos N G, Athanassiou C G, Guedes R N, Drempela J D, Boukouvala M C. 2017. Invader competition with local competitors: displacement or coexistence among the invasive khapra beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), and two other major stored-grain beetles? Frontiers in Plant Science 8: 1837.

Lee A M, Sæther B E, Engen S. 2020. Spatial covariation of competing species in a fluctuating environment. Ecology 101(1): e02901.

May'I Y, Abdul-Kareem S, Mahdii B A. 2016. Biological activity of some plants extract against in the survival of rate adult Oryzaephilus surinamensis (Coleopteran Silvanaidae). Iraqi Journal of Science 1377-1382.

Okrikata E, Ogunwolu E O. 2019. Determination of the critical period of cyper-diforce® treatment against arthropod fauna and productivity of watermelon. Iraqi Journal of Science 60(9): 1904-1919.

Papanikolaou N E, Kavallieratos N G, Kondakis M, Boukouvala M C, Nika E P, Demiris N. 2019. Elucidating fitness components of the invasive dermestid beetle Trogoderma granarium combining deterministic and stochastic demography. PLoS One 14(2): e0212182.

Qader F A, Ameen H N H, Mohammed B M H. 2022, July. Effect of food treated with silica gel on three types of storehouse insects. In IOP Conference Series: Earth and Environmental Science (Vol. 1060, No. 1, p. 012098). IOP Publishing.

Mwalusepo S, Tonnang H E, Massawe E S, Johansson T, Le Ru B P. 2014. Stability analysis of competing insect species for a single resource. Journal of Applied Mathematics 2014: 1-14.

Mathematics Volume 2014, 14 pages.

Gourgouta M, Agrafioti P, Athanassiou C G. 2021. Insecticidal effect of phosphine for the control of different life stages of the khapra beetle, Trogoderma granarium (Coleoptera: Dermestidae). Crop Protection 140: 105409.

Tikhonov M, Monasson R. 2017. Collective phase in resource competition in a highly diverse ecosystem. Physical Review Letters 118(4): 048103.

Yannelli F A, Koch C, Jeschke J M, Kollmann J. 2017. Limiting similarity and Darwin’s naturalization hypothesis: understanding the drivers of biotic resistance against invasive plant species. Oecologia 183: 775-784.

Thierry M, Hrček J, Lewis O T. 2019. Mechanisms structuring host–parasitoid networks in a global warming context: a review. Ecological Entomology 44(5): 581-592.